To understand what a diamond certificate is, we can first understand the classification of diamond certificates.
Internationally recognized mainstream diamond certificates are mainly divided into two categories:
The first category is 4C certificate.
The 4C certificate of diamond measures the value of diamond from four aspects: carat number, color, clarity and cut.
Many laboratories provide such certificates, among which GIA's 4C certificate is the most widely used. Most of the diamond certificates mentioned in the market only refer to 4C certificates.
The second category is the optical performance certificate of diamond.
The optical performance certificate of diamond measures the beauty and value of diamond from four angles: brightness, sparkle, fire color and optical symmetry.
Because the evaluation standard of diamond optical performance certificate is put forward by Sarine Diamond Laboratory, diamond optical performance certificate generally refers to Sarine diamond optical performance certificate of Sarine Technologies Ltd.
Global standard for grading optical properties of sarin diamonds.
Therefore, due to the different types of diamond certificates, the interpretation of what is a diamond certificate will be different.